My opinions: 5.0 was the golden age of content, the ability prune barely did anything, and 6.2 was actually an enjoyable timesink.
If your thread can contain the phrase "get rid of LFR" even with a rough summary, it's just another anti-LFR thread.
20m Mythic was, by far, the worst thing to come out of WoD.
I am not touching the PvP realm issue but multi-character transfers are another topic altogether. It doesn't seem like an unreasonable suggestion for the players to be able to transfer a notable number of characters at once for a somewhat discounted price.
There are risks with the biggest ones being tied to individual realm economies but as long as the service is designed appropriately with smart limitations then I think the pros outweight the cons.